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Minority-spin t<sub>2<sub>g</sub></sub>states and the degree of spin polarization in ferromagnetic metallic La<sub>2-2x</sub>Sr<sub>1+2x</sub>Mn<sub>2</sub>O<sub>7</sub> (x = 0.38) [electronic resource].

Published:
Washington, D.C. : United States. Dept. of Energy. Office of Basic Energy Sciences, 2013.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
Physical Description:
Article numbers 3,167 : digital, PDF file
Additional Creators:
Argonne National Laboratory, United States. Department of Energy. Office of Basic Energy Sciences, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary:
In this paper, a half-metal is a material with conductive electrons of one spin orientation. This type of substance has been extensively searched for due to the fascinating physics as well as the potential applications for spintronics. Ferromagnetic manganites are considered to be good candidates, though there is no conclusive evidence for this notion. Here we show that the ferromagnet La2–2xSr1+2xMn2O7 (x = 0.38) possesses minority-spin states, challenging whether any of the manganites may be true half-metals. However, when electron transport properties are taken into account on the basis of the electronic band structure, we found that the La2–2xSr1+2xMn2O7 (x = 0.38) can essentially behave like a complete half metal.
Report Numbers:
E 1.99:1395129
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Note:
Published through SciTech Connect.
11/07/2013.
"103336"
Scientific Reports 3 1 ISSN 2045-2322 AM
Z. Sun; Q. Wang; J. F. Douglas; H. Lin; S. Sahrakorpi; B. Barbiellini; R. S. Markiewicz; A. Bansil; A. V. Fedorov; E. Rotenberg; H. Zheng; J. F. Mitchell; D. S. Dessau.
Funding Information:
AC02-06CH11357
View MARC record | catkey: 24093468